Miley Cyrus’ transformation from a sweet-faced child star into a twerking, wild-child sensation has garnered plenty of debate, but she says it’s not really all that deep — she just grew up, y’all.

“I think people forget what it feels like to be 20,” she said in a recent interview. “People just evolve and that’s all that’s happened to me. But people think a mad scientist somehow cooked up this potion and turned me in to a different human, which it wasn’t. All I did was get a haircut and buy some clothes and everyone thinks that I am made into a robot that changes with what’s popular every 10 years.”

Cyrus has raised eyebrows as she continues to distance herself from her former life as the star of the Disney show “Hannah Montana.” Now engaged to actor Liam Hemsworth, Cyrus is concentrating on her musical career and due to release an album in the fall.

Cyrus has one of the summer’s biggest hits with “We Can’t Stop”; it’s now No. 2 on Billboard’s Hot 100 chart. In the song’s video, which has reached 100 million views on YouTube, Cyrus dances suggestively amid bizarre imagery, including a skull made of french fries. Cyrus says the video was inspired by her own life and the wild parties she’s been at.

Besides, Cyrus says acting a little crazy can actually be good for the soul.

“That’s why I think some people kind of fall off and they end up going crazy because you don’t give yourself time to go crazy,” she said. “That’s what you’re supposed to do; you are 20, you are supposed to be a mess because you haven’t figured it out yet, and 10 years from now I am supposed to have it all together.”